<?php

declare(strict_types=1);

namespace longbingcore\tools;


class LongbingStr
{

    /**
     * @param $str
     * @功能说明:转utf 8
     */

    static public function strToUtf8($str){
        $encode = mb_detect_encoding($str, array("ASCII",'UTF-8',"GB2312","GBK",'BIG5'));
        if($encode == 'UTF-8'){
            return $str;
        }else{
            return mb_convert_encoding($str, 'UTF-8', $encode);
        }
    }
}